<em>// PascalABC.NET 3.2, сборка 1387 от 20.02.2017</em>
<em>// Внимание! Если программа не работает, обновите версию!</em>
begin
var a:=ArrRandom(ReadInteger('n='),-2,2); a.Println;
Writeln('Положительных: ',a.Where(x->x>0).Count)
end.
<u>Пример</u>
n= 15
1 -1 -1 2 0 2 2 -2 -2 0 -1 -1 -2 1 1
Положительных: 6
1)
var k1,k2,k3,k4:integer;
f,f1,f2,f3,f4:real;
begin
write('F = ');
readln(f);
writeln('k1, k2, k3, k4:');
readln(k1,k2,k3,k4);
f1:=f/(k1+k2+k3+k4)*k1;
f2:=f/(k1+k2+k3+k4)*k2;
f3:=f/(k1+k2+k3+k4)*k3;
f4:=f/(k1+k2+k3+k4)*k4;
writeln('f1 = ',f1:5:2);
writeln('f2 = ',f2:5:2);
writeln('f3 = ',f3:5:2);
writeln('f4 = ',f4:5:2);
end.
Пример:
F = 5
k1, k2, k3, k4:
11 14 13 12
f1 = 1.10
f2 = 1.40
f3 = 1.30
f4 = 1.20
2)
var a,a4,a6:real;
begin
write('a = ');
readln(a);
a4:=a*a; //a^2
a4:=a4*a4; //a^4
writeln(a,'^4 = ',a4);
a6:=a*a; //a^2
a6:=a6*a6*a6; //a^6
writeln(a,'^6 = ',a6);
end.
Пример:
a = 2
2^4 = 16
2^6 = 64
а) if (a>100) and (b>100) then
write('ISTENO');
б) if (a mod 2 = 0) or (b mod 2 =0) then
write('ISTENO');
в) if (a > 0) or (b>0) then
write('ISTENO');
г) if (a mod 3 = 0) and (b mod 3 = 0) and (c mod 3 = 0) then
write('ISTENO');
д) if ((a<50) and (b>50) and (c>50)) or ((a>50) and (b<50) and (c>50)) or ((a>50) and (b>50) and (c<50)) then
write('ISTENO');
е) if (a<0) or (b<0) or (c<0) then
write('ISTENO');